Advanced Optical Materials最新文献_第3页

Exploring Strategies for Performance Enhancement in Micro-LEDs: a Synoptic Review of III-V Semiconductor Technology (Advanced Optical Materials 6/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-24 DOI: 10.1002/adom.202570060

Driss Mouloua, Michael Martin, Miguel Beruete, Christophe Jany, Karim Hassan, Thierry Baron

引用次数: 0

High-Transmission Mid-Infrared Bandpass Filters using Hybrid Metal-Dielectric Metasurfaces for CO2 Sensing

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-21 DOI: 10.1002/adom.202402603

Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson

{"title":"High-Transmission Mid-Infrared Bandpass Filters using Hybrid Metal-Dielectric Metasurfaces for CO2 Sensing","authors":"Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson","doi":"10.1002/adom.202402603","DOIUrl":"https://doi.org/10.1002/adom.202402603","url":null,"abstract":"Mid-infrared (MIR) spectroscopy is widely applied in many applications such as gas sensing, industrial inspection, astronomy, and imaging. While thin-film narrowband interference filters are cost-effective for MIR sensing, their complex fabrication limits their suitability for miniaturized systems. Plasmonic nanostructures, though explored for MIR applications, suffer from broad spectral responses and low efficiencies due to the ohmic losses inherent in metals. All-dielectric metasurfaces, with low intrinsic losses, have been proposed as alternatives for MIR spectroscopy. However, their operation is typically limited to reflection mode. In this work, a hybrid metal-dielectric metasurface operating in transmission mode for MIR spectroscopy is introduced. Composed of germanium (Ge) atop aluminium (Al) cylinders on a calcium fluoride (CaF2) substrate, the metasurface achieves high transmission efficiency (80%) at λ = 2.6 µm and a narrow full-width-half-maximum of 0.4 µm. The transmission response arises due to the hybridization of modes between the Ge and Al structures. Numerical simulations are demonstrated, a straightforward fabrication method, and successful deployment as an in-line optical filter for CO2 gas detection, achieving a detection limit of ≈0.04% (≈400 ppm). This work highlights the potential of hybrid metasurfaces as in-line gas sensing filters in MIR spectroscopy.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 8","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402603","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learned Structure-Property Correlation Between Nanohelices and Circular Dichroism 机器学习纳米螺旋与环二色性之间的结构-性能相关性

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-21 DOI: 10.1002/adom.202402595

Juanshu Wu, Yingming Pu, Jin Wang, Bing Gu, Xin Chen, Hongyu Chen

{"title":"Machine Learned Structure-Property Correlation Between Nanohelices and Circular Dichroism","authors":"Juanshu Wu, Yingming Pu, Jin Wang, Bing Gu, Xin Chen, Hongyu Chen","doi":"10.1002/adom.202402595","DOIUrl":"https://doi.org/10.1002/adom.202402595","url":null,"abstract":"Rational design of chiral nanostructures with desired Circular Dichroism (CD) spectra requires a quantitative structure-property relationship, which has so far been unavailable. Using a data-driven method, the aim is to establish such a relationship for nanohelices, a prevalent structural element of chiral nanostructures. Given the challenges in synthesizing nanohelices and separating racemic mixtures, obtaining extensive CD data has been difficult. Instead, CD spectra of 1260 nanohelices are stimulated using finite-difference time-domain method. This dataset is used to train a convolutional neural network that can accurately predict the CD spectra using a few key structural parameters such as pitch and curl. Moreover, an inverse design model is developed that can generate the right helix with the desired CD. To establish quantitative relationships, Shapley Additive explanations analysis and case studies are devised for the prediction model. The algorithm efficiently analyzes the structure-property correlation, revealing the specific degrees of structural influence on the spectroscopic characteristics. Furthermore, the neural-network-based model can be extended via transfer learning to predict CD spectra of nanohelices made of other noble metals (Ag, Cu). It is believed that AI-based approaches can significantly broaden the scope of wet-chemistry nanosynthesis and computational techniques in the design of chiral nanostructures.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in Narrow Emission Bandwidth Materials for Application in Organic Light-Emitting Diodes

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-21 DOI: 10.1002/adom.202402653

Jihoon Kang, Dong Jin Shin, Jun Yeob Lee

引用次数: 0

End-to-End Metasurface Design for Temperature Imaging via Broadband Planck-Radiation Regression

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-20 DOI: 10.1002/adom.202402498

Sophie Fisher, Gaurav Arya, Arka Majumdar, Zin Lin, Steven G. Johnson

引用次数: 0

High-Performance Zinc-Lead Alloy Green Quasi-2D Perovskite Light-Emitting Diodes

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-18 DOI: 10.1002/adom.202402360

Guangchuan Zhong, Guoqiang Yuan, Boyang Li, Langwen Qiu, Yan Zhang, Guanwei Sun, Zhao Chen, Fanyuan Meng, Shi-Jian Su

{"title":"High-Performance Zinc-Lead Alloy Green Quasi-2D Perovskite Light-Emitting Diodes","authors":"Guangchuan Zhong, Guoqiang Yuan, Boyang Li, Langwen Qiu, Yan Zhang, Guanwei Sun, Zhao Chen, Fanyuan Meng, Shi-Jian Su","doi":"10.1002/adom.202402360","DOIUrl":"https://doi.org/10.1002/adom.202402360","url":null,"abstract":"Lead-based perovskite light-emitting diodes (PeLEDs) is gaining significant attention for their outstanding optoelectronic properties. However, the intrinsic lead toxicity in these materials presents serious environmental and health risks, limiting their further development. Here, highly efficient zinc-lead alloy quasi-2D perovskites are developed through Zn2+ substitution and additive engineering. The Zn2+ substitution improves tolerance factors, increases radiative recombination rates, and suppresses nonradiative recombination, thereby enhancing stability. Additionally, [bis(4-methoxyphenyl) phosphinyloxy]carbamic acid tert-butyl ester (BPCA) additive effectively passivates bromine vacancy defects and improves film quality. The successful Zn2+ substitution and additive passivation strategy results in a significantly increased photoluminescence quantum yield from 4.3 to 85.6%. Consequently, high-performance zinc-lead alloy green PeLEDs are achieved with a maximum current efficiency of 54.35 cd A−1 and a peak external quantum efficiency of 22.49%, representing the highest performance among green PeLEDs with partial lead substitution. Moreover, the T50 lifetime of Zn-Lead alloy PeLEDs is ≈8.9 times longer than that of the pristine PeLEDs. The approach not only mitigates lead toxicity but also improves device efficiency and stability, representing a significant advancement toward safer and more sustainable perovskite-based optoelectronic devices.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 7","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

End-to-End Optimization of Metalens for Broadband and Wide-Angle Imaging

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-18 DOI: 10.1002/adom.202402853

Yeongmyeong Park, Youngjin Kim, Changhyun Kim, Gun-Yeal Lee, Hyeongyu Choi, Taewon Choi, Yoonchan Jeong, Byoungho Lee

{"title":"End-to-End Optimization of Metalens for Broadband and Wide-Angle Imaging","authors":"Yeongmyeong Park, Youngjin Kim, Changhyun Kim, Gun-Yeal Lee, Hyeongyu Choi, Taewon Choi, Yoonchan Jeong, Byoungho Lee","doi":"10.1002/adom.202402853","DOIUrl":"https://doi.org/10.1002/adom.202402853","url":null,"abstract":"End-to-end optimization of metalens and artificial intelligence-driven image restoration algorithms has recently emerged as a powerful tool for realizing ultra-compact imaging systems. However, the limited imaging quality of existing approaches remains challenging in meeting the demand for commercial devices due to the severe aberrations exhibited by metalens. These results in highly blurred sensor images, creating substantial challenges for accurate image restoration. In this work, a novel meta-imager is introduced that overcomes this challenge by employing an aperture-stop-integrated metalens and co-designing it with a computational image restoration network using a fully differentiable optimization framework. The proposed imager physically consists of a single metalens and an aperture stop located on the opposite side of the 1 mm-thick glass substrate. This configuration effectively alleviates off-axis aberrations such as coma and astigmatism, facilitating the image restoration process of the deep neural networks. The experimental results present that this scheme features 70° field-of-view, for full-color imaging across the entire visible spectrum. It is believed that this work represents a significant advancement in creating ultra-compact cameras using nanophotonics.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402853","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chalcogenide Visible Transmissive Metasurface Optics

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-17 DOI: 10.1002/adom.202402359

Hao Dai, Yilin Shi, Zezhao Ju, Kunhao Lei, Ye Luo, Jieren Song, Ruizhe Liu, Qikai Chen, Mengxue Qi, Yaoguang Ma, Lan Li, Hongtao Lin

引用次数: 0

Mixed Molybdenum–Tungsten Oxide as Dual-Band, VIS–NIR Selective Electrochromic Material

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202401995

Florian Gillissen, Michaël Lobet, Jennifer Dewalque, Pierre Colson, Gilles Spronck, Rachel Gouttebaron, Mathieu Duttine, Brandon Faceira, Aline Rougier, Luc Henrard, Rudi Cloots, Anthony Maho

{"title":"Mixed Molybdenum–Tungsten Oxide as Dual-Band, VIS–NIR Selective Electrochromic Material","authors":"Florian Gillissen, Michaël Lobet, Jennifer Dewalque, Pierre Colson, Gilles Spronck, Rachel Gouttebaron, Mathieu Duttine, Brandon Faceira, Aline Rougier, Luc Henrard, Rudi Cloots, Anthony Maho","doi":"10.1002/adom.202401995","DOIUrl":"https://doi.org/10.1002/adom.202401995","url":null,"abstract":"The energy efficiency of smart windows can be greatly improved by integrating dual-band electrochromic materials based on nanostructured doped metal oxides, as these allow for the dynamic and independent control of light and heat supplies in buildings, respectively, related to transmitted visible (VIS) and near-infrared (NIR) solar radiations. Mixed molybdenum–tungsten oxides MoyW1−yO3−δ “MoWOx” are considered as innovative compounds in this context: in comparison with parent WO3−δ formulations, a remarkable increase of unpaired electrons can be obtained from the formation of a larger amount of both reduced species and oxygen vacancies during the synthetic process of MoWOx materials, with a consequently boosted intensity of light absorption by 850–900 nm wavelengths. Consecutively, spin-coated films obtained from MoWOx structures, solvothermally synthesized for 1 h from 2/1 Mo/W atomic ratios, are shown to be electrochromically commutable through a noticeable VIS-darkened and NIR-transparent warm state, while WO3−δ benchmarks classically evolve between bright (VIS- and NIR-bleached), cool (VIS-bleached, NIR-opaque), and dark (VIS- and NIR-opaque) states. All in all, such advanced optical functionalities are of high interest for fine-tuning the selectivity and improving the efficiency of electrochromic fenestration solutions, further improving their capacity to adapt to different climates, seasons, and user preferences.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 7","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401995","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Optics Applications of Hexagonal Boron Nitride Defects

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202402508

Aslı Çakan, Chanaprom Cholsuk, Angus Gale, Mehran Kianinia, Serkan Paçal, Serkan Ateş, Igor Aharonovich, Milos Toth, Tobias Vogl

引用次数: 0